Laboratoire de physiologie et de biomécanique de la performance motrice, Université de Balamand, Al Koura, Lebanon.
J Clin Densitom. 2011 Jan-Mar;14(1):63-7. doi: 10.1016/j.jocd.2010.11.001.
The aim of this study was to explore the relation between birth weight and bone mass in a group of adolescent boys. This study included 44 adolescent (aged 14-20yr) boys. Anthropometric characteristics (height and weight) were measured and birth weights were obtained from the obstetric records. Body composition was assessed by dual-energy X-ray absorptiometry (DXA). Bone mineral content (BMC) and bone mineral density (BMD) of the whole body (WB) and the lumbar spine (L2-L4) were also assessed by DXA. Calculations of the bone mineral apparent density (BMAD) were completed for the WB and at the lumbar spine (L2-L4). The expressions WB BMC/height and WB BMD/height were calculated to adjust for WB bone size. Birth weight was positively correlated to body weight (r=0.37; p<0.05), body mass index (r=0.38; p<0.01), body fat percentage (r=0.44; p<0.01), and negatively associated with WB BMAD (r=-0.46; p<0.01). In conclusion, this study suggests that birth weight is a positive determinant of body weight, body mass index, and body fat percent but a negative determinant of WB BMAD in adolescent boys.
本研究旨在探讨一组青少年男孩的出生体重与骨量之间的关系。该研究纳入了 44 名青少年（年龄 14-20 岁）男孩。测量了人体测量学特征（身高和体重），并从产科记录中获得了出生体重。通过双能 X 射线吸收法（DXA）评估身体成分。通过 DXA 还评估了全身（WB）和腰椎（L2-L4）的骨矿物质含量（BMC）和骨矿物质密度（BMD）。还完成了 WB 和腰椎（L2-L4）的骨矿物质表观密度（BMAD）的计算。计算了全身 BMC/身高和全身 BMD/身高的表达，以调整全身骨量。出生体重与体重（r=0.37；p<0.05）、体重指数（r=0.38；p<0.01）、体脂百分比（r=0.44；p<0.01）呈正相关，与 WB BMAD 呈负相关（r=-0.46；p<0.01）。总之，本研究表明，出生体重是青少年男孩体重、体重指数和体脂百分比的正决定因素，但却是 WB BMAD 的负决定因素。
